Patentable/Patents/US-10971101
US-10971101

Liquid crystal display and mobile terminal

PublishedApril 6, 2021
Assigneenot available in USPTO data we have
Inventorsnot available in USPTO data we have
Technical Abstract

The present disclosure relates to a liquid crystal display (LCD) having a substrate and at least one scanning controller. the substrate is configured with a plurality of thin film transistors (TFTs). Each of the TFTs includes a gate, a drain and a pixel electrode, and the gate of each of the TFTs electrically connecting to the scanning controller along a first direction in sequence. One end of the drain connects to the pixel electrode, and the other end of the drain is stacked on the gate along a third direction perpendicular to the substrate. The drain is insulated from the gate, and a dimension of a projection area of the drain on the gate along the third direction increases when a distance between the TFT and the scanning controller in the first direction increases.

Patent Claims
20 claims

Legal claims defining the scope of protection, as filed with the USPTO.

1

1. A liquid crystal display (LCD), comprising: a substrate and a scanning controller, the substrate being configured with a plurality of thin film transistors (TFTs), each of the TFTs comprising a gate, a drain and a pixel electrode, the gate of each of the TFTs electrically connecting to the scanning controller along a first direction in sequence, one end of the drain connecting to the pixel electrode, and the other end of the drain being a part of the drain that is stacked on the gate and insulated from the gate so that the part of the drain casts a projection on the gate along a third direction perpendicular to the substrate, the projections that the parts of the drains of the plurality of TFTs cast on the gates of the plurality of the TFTs having projection areas that are different from each other, wherein for multiple TFTs of the plurality of TFTs that are arranged away from the scanning controller in the first direction with distances increasing from the scanning controller, the projection areas of the projections that the parts of the drains of the multiple TFTs cast on the gates of the multiple TFTs are increased one by one in the first direction with the increase of the distances of the multiple TFTs away from scanning controller.

2

2. The LCD as claimed in claim 1 , wherein a stacked area of the drain and the gate in the third direction is a rectangle, two adjacent sides of the rectangle respectively extends along the first direction and a second direction, the second direction is perpendicular to the first direction, a length of the side extending along the first direction remains the same when the dimension of the projection area has been increased.

3

3. The LCD as claimed in claim 2 , wherein the LCD further comprises two scanning controllers respectively connecting to the TFTs in two regions of the substrate to control the TFTs, and the projection area of the TFTs in each of the regions is configured to be in a sequential increment manner basing on a distance between the TFT and the connected scanning controller.

4

4. The LCD as claimed in claim 3 , wherein the two scanning controllers are respectively configured at two sides defined by the first direction, the two regions of the substrate is divided by a center line in the first direction such that at least one pair of TFTs are respectively configured at the corresponding locations in the two regions with respect to the center line, and the dimensions of the projection area of the two corresponding TFTs are the same.

5

5. The LCD as claimed in claim 2 , wherein the LCD further comprises a data controller, the TFT comprises a source, the data controller electrically connects to the source along the second direction in turn, and the dimensions of the projection areas of the TFTs are configured to be increased in turn, along the second direction, according to the distance between the TFT and the data controller.

6

6. The LCD as claimed in claim 4 , wherein the source is opposite to the drain, and a channel is disposed between the source and the drain, and a length of the channel remains the same.

7

7. The LCD as claimed in claim 4 , wherein the source is opposite to the drain, and a channel is disposed between the source and the drain, and a length of the channel is configured to be gradually decreased when the dimension of the projection area has been gradually increased.

8

8. The LCD as claimed in claim 6 , wherein the LCD comprises two data controllers electrically connecting to the TFTs in the two regions of the substrate so as to control the TFTs, and the dimension of the projection area of each of the TFTs in the two regions has been gradually increased according to the distance between the TFT and the connected data controller.

9

9. The LCD as claimed in claim 7 , wherein the LCD comprises two data controllers electrically connecting to the TFTs in the two regions of the substrate so as to control the TFTs, and the dimension of the projection area of each of the TFTs in the two regions has been gradually increased according to the distance between the TFT and the connected data controller.

10

10. The LCD as claimed in claim 8 , wherein the two scanning controllers are respectively configured at two sides defined by the second direction, the two regions of the substrate is divided by a center line in the second direction such that at least one pair of TFTs are respectively configured at the corresponding locations in the two regions with respect to the center line, and the dimensions of the projection area of the two corresponding TFTs are the same.

11

11. A mobile terminal, comprising: a liquid crystal device (LCD) comprising a substrate and a scanning controller, the substrate being configured with a plurality of thin film transistors (TFTs), each of the TFTs comprising a gate, a drain and a pixel electrode, the gate of each of the TFTs electrically connecting to the scanning controller along a first direction in sequence, one end of the drain connecting to the pixel electrode, and the other end of the drain being a part of the drain that is stacked on the gate and insulated from the gate so that the part of the drain casts a projection on the gate along a third direction perpendicular to the substrate, the projections that the parts of the drains of the plurality of TFTs cast on the gates of the plurality of the TFTs having projection areas that are different from each other, wherein for multiple TFTs of the plurality of TFTs that are arranged away from the scanning controller in the first direction with distances increasing from the scanning controller, the projection areas of the projections that the parts of the drains of the multiple TFTs cast on the gates of the multiple TFTs are increased one by one in the first direction with the increase of the distances of the multiple TFTs away from scanning controller.

12

12. The mobile terminal as claimed in claim 11 , wherein a stacked area of the drain and the gate in the third direction is a rectangle, two adjacent sides of the rectangle respectively extends along the first direction and a second direction, the second direction is perpendicular to the first direction, a length of the side extending along the first direction remains the same when the dimension of the projection area has been increased.

13

13. The mobile terminal as claimed in claim 12 , wherein the LCD further comprises two scanning controllers respectively connecting to the TFTs in two regions of the substrate to control the TFTs, and the projection area of the TFTs in each of the regions is configured to be in a sequential increment manner basing on a distance between the TFT and the connected scanning controller.

14

14. The mobile terminal as claimed in claim 13 , wherein the two scanning controllers are respectively configured at two sides defined by the first direction, the two regions of the substrate is divided by a center line in the first direction such that at least one pair of TFTs are respectively configured at the corresponding locations in the two regions with respect to the center line, and the dimensions of the projection area of the two corresponding TFTs are the same.

15

15. The mobile terminal as claimed in claim 12 , wherein the LCD further comprises a data controller, the TFT comprises a source, the data controller electrically connects to the source along the second direction in turn, and the dimensions of the projection areas of the TFTs are configured to be increased in turn, along the second direction, according to the distance between the TFT and the data controller.

16

16. The mobile terminal as claimed in claim 14 , wherein the source is opposite to the drain, and a channel is disposed between the source and the drain, and a length of the channel remains the same.

17

17. The mobile terminal as claimed in claim 14 , wherein the source is opposite to the drain, and a channel is disposed between the source and the drain, and a length of the channel is configured to be gradually decreased when the dimension of the projection area has been gradually increased.

18

18. The mobile terminal as claimed in claim 16 , wherein the LCD comprises two data controllers electrically connecting to the TFTs in the two regions of the substrate so as to control the TFTs, and the dimension of the projection area of each of the TFTs in the two regions has been gradually increased according to the distance between the TFT and the connected data controller.

19

19. The mobile terminal as claimed in claim 17 , wherein the LCD comprises two data controllers electrically connecting to the TFTs in the two regions of the substrate so as to control the TFTs, and the dimension of the projection area of each of the TFTs in the two regions has been gradually increased according to the distance between the TFT and the connected data controller.

20

20. The mobile terminal as claimed in claim 18 , wherein the two scanning controllers are respectively configured at two sides defined by the second direction, the two regions of the substrate is divided by a center line in the second direction such that at least one pair of TFTs are respectively configured at the corresponding locations in the two regions with respect to the center line, and the dimensions of the projection area of the two corresponding TFTs are the same.

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Patent Metadata

Filing Date

August 1, 2018

Publication Date

April 6, 2021

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Cite as: Patentable. “Liquid crystal display and mobile terminal” (US-10971101). https://patentable.app/patents/US-10971101

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